Staying at Marriott City Center, anywhere to grab coffee creamer, milk, cereal, etc etc?

Staying at Marriott City Center, anywhere to grab coffee creamer, milk, cereal, etc etc?
There are lots of markets in Chinatown couple of blocks away.
That would be 7th or 8th St, and to the left of Broadway, but not after 9 pm, please.
Bad neighborhood?? Will I be safe going from BART to my hotel (Marriott) after sunset?
The BART station is a block from the hotel. I just would not be walking alone to get your groceries after dinner. Please ask your hotel for advice.
There is a Walgreen CVS store at 12th or 13th St at Broadway. Go in the morning, not real big about 510 at night. BART is a short block from your hotel.
Traveling Chum. means 510, the area code. That's painting a fabulous area with a broad brush. There are large pockets of messy gang troubles protected by a decimated police force. And there are wonderful places, beautiful places, that are as lovely as anything you will find in the other area codes of the Bay Area.
Downtown Oakland has been regenerated, with the help of our governor, Jerry Brown, the old "Governor Moonbeam." He was Mayor of the city of Oakland, and brought in a lot of development money. It looks good, but problems persist from time to time. It shouldn't bother you at all.
Actually, the area around your hotel is pretty quiet at night. You will be fine getting to and from BART. But most of the places where you would get some groceries won't be open at night anyway.
About 6 blocks up Broadway from your hotel is the Hot spot of Oakland for great restaurants, clubs & theaters including the Paramount the Number 1 Art Deco in the US according to AMC. The regenerated Fox home to Oakland's "School for the Arts" is located there.
Food choices range fromContinentall to Mexican to Californian & of course every type of Asian.
Smart & Final is across the street from your hotel, on Broadway between 9th and 10th streets. You can pick up groceries there. For anything that you can't get there, try the nearby Walgreens or Rite Aid. Both are located on Broadway at 14th Street. If you need anything more elaborate than that, you'll have to head to Whole Foods (at Harrison and 27th streets) or Grocery Outlet (at Broadway and 29th Street).
The neighborhood around your hotel is fine. Old Oakland is active at night. Chinatown less so. The freeway areas are best left alone after dark, so I would avoid anything between 4th and 7th streets or west of Clay Street. The stretch of Broadway between 11th and 14th streets is quiet at night, too, but it's a fine place to walk around if you are heading to/from Uptown (which starts around 17th Street, primarily along Telegraph Avenue).
Thanks for all your help,, I feel better now!